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ASTM A325M-09

Historical Revision

Standard Specification for Structural Bolts, Steel, Heat Treated 830 MPa Minimum Tensile Strength [Metric]

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1.1 This specification covers two types of quenched and tempered, steel, metric heavy hex structural bolts having a minimum tensile strength of 830 MPa (Note 1).

1.2 The bolts are intended for use in structural connections. These connections are comparable to those covered under the requirements of the Specification for Structural Joints using ASTM A 325 or A 490 bolts, approved by the Research Council on Structural Connections; endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute.

1.3 The bolts are furnished in sizes M12 to M36 inclusive. They are designated by type denoting chemical composition as follows:

1.3.1 Type 1Medium-carbon, carbon boron, medium carbon alloy, or alloy boron steel.

1.3.2 Type 2Withdrawn in 2003.

1.3.3 Type 3Weathering Steel.

1.4 This specification is applicable to metric heavy hex, structural bolts only.

1.5 Terms used in this specification are defined in Terminology F 1789.

1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

Note 1—This specification is the metric companion to the inch pound Specification A 325.

1.7 The following safety hazard caveat pertains only to the test methods portion, Section 10, of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

This specification covers two types of quenched and tempered, steel, metric heavy hex structural bolts. The bolts are intended for use in structural connections. The bolts are furnished in sizes M12 to M36 inclusive. They are designated by type denoting chemical composition as follows: Type 1Medium-carbon, carbon boron, medium carbon alloy, or alloy boron steel; and Type 3Weathering Steel. Materials shall be tested and the individual grades shall conform to specified values of heat treatment, threading, hot-dip and mechanically coated zinc coatings, lubrication, secondary processing, chemical composition, mechanical properties such as hardness, tensile properties, and rotational capacity.


SDO ASTM: ASTM International
Document Number A325
Publication Date Jan. 1, 2009
Language en - English
Page Count 8
Revision Level 09
Supercedes
Committee F16.02
Publish Date Document Id Type View
Sept. 1, 2014 A0325M-14 Revision
Feb. 15, 2013 A0325M-13 Revision
Jan. 1, 2009 A0325M-09 Revision
June 1, 2008 A0325M-08 Revision
Dec. 1, 2007 A0325M-07 Revision
Dec. 1, 2005 A0325M-05 Revision
Sept. 1, 2004 A0325M-04B Revision
Aug. 1, 2004 A0325M-04A Revision
Jan. 1, 2004 A0325M-04 Revision
Jan. 10, 2003 A0325M-03 Revision
May 10, 2000 A0325M-00 Revision